GNU Radio Manual and C++ API Reference  3.7.9.2
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source_c.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2011-2013 Free Software Foundation, Inc.
4  *
5  * GNU Radio is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 3, or (at your option)
8  * any later version.
9  *
10  * GNU Radio is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with GNU Radio; see the file COPYING. If not, write to
17  * the Free Software Foundation, Inc., 51 Franklin Street,
18  * Boston, MA 02110-1301, USA.
19  */
20 
21 #ifndef INCLUDED_FCD_SOURCE_C_H
22 #define INCLUDED_FCD_SOURCE_C_H
23 
24 #include <gnuradio/fcd/api.h>
25 #include <gnuradio/hier_block2.h>
26 
27 namespace gr {
28  namespace fcd {
29 
30  /*!
31  * \brief Funcube Dongle source block.
32  * \ingroup fcd_blk
33  *
34  * \details
35  * This class provides a Funcube Dongle soure block by wrapping
36  * the USB audio interface and the USB HID control interface of
37  * the Funcube Dongle into one convenient source block.
38  *
39  * The Funcube Dongle needs to have firmware 18f or later for the
40  * control interface to work properly. As of early 2011, FCDs
41  * still come with firmware 18b. You can use qthid 2.2 (not 3) to
42  * upgrade the firmware: http://qthid.sf.net
43  */
44  class FCD_API source_c : virtual public gr::hier_block2
45  {
46  public:
47  // gr::fcd::source_c::sptr
48  typedef boost::shared_ptr<source_c> sptr;
49 
50  /*!
51  * \brief Return a shared_ptr to a new instance of fcd_source_c.
52  *
53  * \details
54  * This is effectively the public constructor. To avoid accidental
55  * use of raw pointers, fcd_source_c's constructor is private.
56  * fcd_make_source_c is the public interface for creating new
57  * instances.
58  */
59  static sptr make(const std::string device_name = "");
60 
61  /*! \brief Set frequency with Hz resolution.
62  * \param freq The frequency in Hz
63  *
64  * Set the frequency of the Funcube Dongle with 1 Hz resolution applying
65  * the frequency correction set by set_freq_corr().
66  *
67  * \see set_freq_khz()
68  */
69  virtual void set_freq(int freq) = 0;
70 
71  /*! \brief Set frequency with Hz resolution.
72  * \param freq The frequency in Hz
73  *
74  * This is a convenience function that uses float parameter in
75  * order to allow using engineering notation in GRC.
76  *
77  * \see set_freq_khz()
78  */
79  virtual void set_freq(float freq) = 0;
80 
81  /*! \brief Set frequency with kHz resolution.
82  * \param freq The frequency in kHz
83  *
84  * Sets the frequency of the Funcube Dongle with 1 kHz
85  * resolution applying the frequency correction set by
86  * set_freq_corr().
87  *
88  * \see set_freq()
89  */
90  virtual void set_freq_khz(int freq) = 0;
91 
92  /*! \brief Set LNA gain.
93  * \param gain The new gain in dB.
94  *
95  * Set the LNA gain in the FCD. Valid range is -5 to
96  * 30. Although the LNA gain in the FCD takes enumerated values
97  * corresponding to 2.5 dB steps, you can can call this method
98  * with any float value and it will be rounded to the nearest
99  * valid value.
100  *
101  * By default the LNA gain is set to 20 dB and this is a good value for
102  * most cases. In noisy areas you may try to reduce the gain.
103  */
104  virtual void set_lna_gain(float gain) = 0;
105 
106  /*! \brief Set mixer gain.
107  * \param gain The new gain in dB.
108  *
109  * Set the mixer gain in the FCD. Valid values are +4 and +12 dB.
110  *
111  * By default the mixer gain is set to +12 dB and this is a good
112  * value for most cases. In noisy areas you may try to reduce
113  * the gain.
114  */
115  virtual void set_mixer_gain(float gain) = 0;
116 
117  /*! \brief Set new frequency correction.
118  * \param ppm The new frequency correction in parts per million
119  *
120  * Version 1.1 FCDs (S/N 810 or later) need a correction of -12
121  * ppm. Earlier FCDs need roughly -120 ppm (default for
122  * gr-fcd).
123  *
124  * Ref: http://www.funcubedongle.com/?p=617
125  */
126  virtual void set_freq_corr(int ppm) = 0;
127 
128  /*! \brief Set DC offset correction.
129  * \param _dci DC correction for I component (-1.0 to 1.0)
130  * \param _dcq DC correction for Q component (-1.0 to 1.0)
131  *
132  * Set DC offset correction in the device. Default is 0.0.
133  */
134  virtual void set_dc_corr(double _dci, double _dcq) = 0;
135 
136  /*! \brief Set IQ phase and gain balance.
137  * \param _gain The gain correction (-1.0 to 1.0)
138  * \param _phase The phase correction (-1.0 to 1.0)
139  *
140  * Set IQ phase and gain balance in the device. The default values
141  * are 0.0 for phase and 1.0 for gain.
142  */
143  virtual void set_iq_corr(double _gain, double _phase) = 0;
144  };
145 
146  } /* namespace fcd */
147 } /* namespace gr */
148 
149 #endif /* INCLUDED_FCD_SOURCE_C_H */
boost::shared_ptr< source_c > sptr
Definition: source_c.h:48
Funcube Dongle source block.
Definition: source_c.h:44
Include this header to use the message passing features.
Definition: logger.h:131
#define FCD_API
Definition: gr-fcd/include/gnuradio/fcd/api.h:30
Hierarchical container class for gr::block's and gr::hier_block2's.
Definition: hier_block2.h:46